frett-less set/up (self made)

i made a very well made japanese p-bass copy into a frett-less,it came out very well and ALMOST looks professionally done,no high spots in neck,chunks taken out or anything else that would hinder the sound quality of the bass. Heres the question-should i have slotted out the nut(to lower the string)? because the action is'nt much lower than it was originally, what should i have done to change(lower) the action of the bass is what i really need to know
thanks dudes

How you set up a fretless depends on what you want it to sound like. If you're looking for a thumpy, dark URB-ish sound, you could probably leave it like it is. If you want the Jaco tone -- snarly and grindy and mwahh-y and all that -- do what Brad suggested.

Either way you should lower the nut slots, or else fingering a low-position note will be difficult and will pull the string out of tune. A good depth to shoot for is: Two normal business cards should slide between the string and the fingerboard right at the nut.

Nut replacement is not a drastically expensive repair, so you could take a shot at this yourself if you feel brave and are handy. Work gradually -- better to leave it a little high than cut too deep. If not, take it to a tech you've had recommended by someone you trust.